feat: Embed Google Drive (#1804)

* implement google drive extension

* add current logo of google drive

* fix issue when posting gdrive links which are already a preview

* always only show the preview

* Add bottom bar to get to original url for Google Drive embeds

Co-authored-by: Tom Moor <tom.moor@gmail.com>

app/embeds/GoogleDrive.js

@@ -0,0 +1,37 @@
+// @flow
+import * as React from "react";
+import Frame from "./components/Frame";
+
+const URL_REGEX = new RegExp(
+  "^https?://drive.google.com/file/d/(.*)/(preview|view).?usp=sharing$"
+);
+
+type Props = {|
+  attrs: {|
+    href: string,
+    matches: string[],
+  |},
+|};
+
+export default class GoogleDrive extends React.Component<Props> {
+  static ENABLED = [URL_REGEX];
+
+  render() {
+    return (
+      <Frame
+        src={this.props.attrs.href.replace("/view", "/preview")}
+        icon={
+          <img
+            src="/images/google-drive.png"
+            alt="Google Drive Icon"
+            width={16}
+            height={16}
+          />
+        }
+        title="Google Drive Embed"
+        canonicalUrl={this.props.attrs.href}
+        border
+      />
+    );
+  }
+}